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merge-proposal-jobs interruption incident

 

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Hi all,

We had some issues with the merge-proposal-jobs script earlier today:
https://wiki.canonical.com/IncidentReports/2011-08-03-LP-failing-jobs

I'm pleased to report that everything is working normally now.
Unfortunately, we didn't actually fix anything.  It just started working
again when we killed and re-ran it.

Since it's working now, we don't have enough information to debug it.
We can take proactive steps to give us more info in the future.

https://bugs.launchpad.net/bugs/820511
https://bugs.launchpad.net/bugs/820516
https://bugs.launchpad.net/bugs/820510

We should consider simplifying the code in the TwistedJobRunner by
avoiding the ParallelLimitedTaskConsumer.  We should also consider
moving away from Ampoule, which appears to be unmaintained.  Perhaps we
could use Celery.

Aaron
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